ЭНЦИКЛОПЕДИЯ ХВОЙНЫХ РАСТЕНИЙ

Полное руководство по сортам и видам

Образец текста

A tall tree to 35m in height found in mixed coniferous forests at 700–2,180m in the
mountains of Japan: central Honshu. The climate is cool and wet with
snowy winters: the soils are of volcanic origin. The crown is
pyramidal or conical with horizontal branches; branchlets pale
orange-brown with ovoid-conical, 3–5mm long, brown. The needles
are spirally arranged, curving forward on upper side of the
branchlets, parted, 8–20(–25)mm long and 1–1.5mm
wide, quadrangular in cross-section, dark green above, blue-green
beneath, with white stomatal bands on all faces, giving the
‘bicolour’ effect. The pollen-cones are 1–1.5cm
long, rose-red, later yellow. The seed-cones are cylindric to ovoid,
(4–)6–12(–15) x (2.5–)3–5(–5.5)cm (with opened scales),
purple-violet ripening to reddish brown. The seed-scales are
obovate-rhombic, notched at the apex or entire, often reflexed.
Hardiness zone 6.

This species was discovered
by J.G. Veitch c.1860 and named after Sir Rutherford Alcock,
who was Queen Victoria’s minister at the Court of Jeddo
(Tokyo). Treated as Picea bicolor by some authorities in the
past.

Var. alcoquiana
– central Honshu. The new shoots are glabrous and the needles
are 8–15mm long, slightly curved forwards. The seed-cones are
6–10cm long, scales undulate and notched at apex.

Var. acicularis
(Maxim. ex Beissn.) Fitschen (syn. P. shirasawae Hayashi) –
central Honshu (Yatsuga-take Mountains). The new shoots are pubescent
and the needles are 13–25mm long, strongly curved, glaucous.
The seed-cones are 6–15cm long, scales with an entire or
denticulate margin. A clones or clones selected for their more
densely arranged, blue-white needles are available in the trade.

Var. reflexa
(Shiras.) Fitschen – central Honshu (Akaishi Range). The new
shoots are pubescent and the needles are 8–13mm long, curved
forwards. The seed-cones are 4–7.5cm long, scales with an
entire margin, apically narrowed and reflexed.

‘Acicularis’ A
clone from var. acicularis which, under ICNCP Art. 21.5
(2009), retains that name when brought into cultivation as a
cultivar.

‘Dwarf Tigertail’ Syn. of ‘Howell’s
Dwarf’.

‘Howell’s Dwarf’
syn. ‘Tigertail’; ‘Dwarf Tigertail’) A
spreading, flat-topped, slow-growing bush with ascending branches.
Needles green with silver-blue undersides and a hint of yellow on the
most exposed surfaces. In ten years 1 x 1.5m. Received by John Vermeulen & Son, Inc., NJ, USA, from
Skylands, NJ, USA, as ‘Howell’s Tigertail’ and
introduced in 1972. Renamed to avoid confusion with the common name
(tiger tail) of P. torano. (W, I)

‘Prostrata’
A dense, low, spreading, almost prostrate cultivar with small
blue-green needles. In ten years 30 x 70cm. Distributed before 1979 by Průhonice Park, Czech Republic. This name in Latin
form is only acceptable if proved to have been published before 1959. (W, BC)

‘Tigertail’ Syn. of ‘Howell’s
Dwarf’.

Picea asperata Mast.–
dragon spruce

A tall tree growing to 30–45m
tall. It is native to the high mountains of C China. It is found at
an elevation of 1,500–3,800m on mountain podzols in a subalpine
continental climate with cold winters and dry summers. The crown is
narrowly conical, tapering towards the top with horizontally
spreading branches. The branchlets are yellowish brown or orange
turning grey and the buds ovoid-conical, 6–12mm long, yellowish
brown. The needles are bluish green and radially arranged, 10–20mm
long and 1–1.8mm wide, quadrangular in cross-section with 3–4
lines of stomata on each face. The pollen-cones are 1–1.5cm
long, reddish, turning yellow. The seed-cones are cylindric, (5–)6–15 x (2.5–)3–4.5cm
(with opened scales), purplish green at first, ripening to brown.
Hardiness zone 6.

‘Arturs Dominiks’
A compact slow-growing bush without a central leader. The radially
arranged foliage is bluish green with wine-red new growth-tips in
spring. In ten years 1.5 x 0.8m. Originated in 1999 as a seedling by Aris Auders, Latvia.

‘Bedgebury WB’
A compact dwarf with short twisted bluish green foliage.
In ten years 30 x 30cm. Originated in Bedgebury National Pinetum, UK. The
cultivar name has also been used under P. omorika: only one
such use can be accepted, to be decided by the International Cultivar
Registration Authority.

‘Hunnewelliana’
A mound-shaped dwarf with grey-green foliage. Raised in a Hunnewell
arboretum in Wellesly, MA, USA from seed brought back from China by
E.H. Wilson. Plants were distributed before 1923. The cultivar
name has also been used under P. pungens: only one such use
can be accepted, to be decided by the International Cultivar
Registration Authority. (H, W)

A tall tree growing to 20–25m
in height. It occurs in China: west Sichuan, in mountains at
altitudes between 2,600 and 4,000m. The climate is cold and the soils
mostly calcareous. The crown is narrowly conical with short spreading
branches and thick, rigid, characteristic orange branchlets. The buds
are broadly ovoid-conical, 4–6mm long, hidden by the needles.
The needles are spirally arranged and directed forwards, blue-green
or grey-green, 8–18mm long and 1.2–2.3mm wide,
quadrangular in cross-section with stomata in 4 bands of 3–6
lines. The pollen-cones are 1.5–2cm long, reddish, then yellow.
The seed-cones are cylindric, 10–12 x 4–4.5cm (with opened scales), bright red, maturing to glossy
reddish brown. The seed-scales are rhombic-ovoid with the apex nearly
rounded. Hardiness zone 5.

Closely related to P. retroflexa
and P. asperata. It
is treated as a variety of P. asperata in Wu Zheng-Yi & Raven, P.H. (eds), Flora
of China Vol. 4 (1999).